Pavement construction



F. A. BROTSCH, JR. PAVEMENT CONSTRUCTION.

APPLICATION FILED NOV. 3, 1919.

1,38%,0420 Patented July 12,1921

t r a c a f a n n nah i FREDERICK A. BROTSCH, JR., OI BRIGHTON, NEVJ' YORK.

PAVEMENT CONSTRUCTION.

1 ggg flg z Specification of Letters Patent. Pgmggnt gfl July 12 1921 Application filed November 3, 1918.

710772. if m any concern To all 21 lie. 15:. known that l, FREDERICK A, the United Estates,

iniwscn, a, a cameo t-i .l resi of Brighton, in the county of .mroe and titate New 7: OiiI, have innted t in new and usetul Improvements .ject is the provision oi an 1 of construction {or tl' blooms, insuring arrangenie it eaztive to one another in. a manner iieeting proper disposition of the materials lo ed, and the consol ion thereot into an rigid. and durable structure, iese and other ends the invention consists n certain. improvements and combinations is will be hereina'tter more t'ully of parts, all i described, the norel iieatiin'cs being pointed out in the claims at the end or the specificatioir in the drawings: i iggure l is a top plan view ot a pareinent constructed in accordance with the present invention. n

' E2 is a sectional elevation thereoi'.

1, 3 is a top plan view of one oi? the sections and hig. a side elevation of same.

Similar reference characters thron 'hout the several viev-rs indira i the same paras.

the embodiment of the invention w ich has I .11 selected tor the purpose of the ,8 out a isclosure to ill strate the principles inrolaed, there is employed a sub-grade 5o? any suitable construction, Fig. 2', on which is placed a layer ct material (3, preferably of a cementing or binding nature tornnng a suitable matrix. Qn the latter are laid the bricks, blocks or other sections 7, which may be of any suitable material, and are formed with lower bases 8 smaller than their upper bases 9, so that each section has its th e Serial No. 335,338.

sides 10 tapering toward each other from the surface of the pavement toward its bottom The sections are preferably laid in spaced relation in the pavement so that there are provided between adjacent sections intervals 11 which increase in width downwardly from the surface toward the bottom oi the pavement, and the intervals 11 are filled with material, preferably of a cementing or binding nature which penetrates to the bottom thereof and into engagement with the matrix The sections are thus completely sup iiorted at the sides and bottom, and all of the inaterialbecomes firmly and securely bound together into a unitary, rigid structure.

The sections 7 may have various shapes, the t uncated quadrilateral pyramid shown in. the drawings havinp; been found advantageous in practice. The tapering form of the interval between sections. increasing in width downwardly an impo tant feature in that it facilitates penetration of the cementing material to the very bottom of the interval so that the sections are not only completely supported on all sides and bound together, but the material in the intervals reaches the bottom layer 6 and unites there with thus forming a solid and rigid structure.

In pavements in which the interval is wider at the top than at the bottom, or even the same width from top to bottom, a cementing material, engaging; the s des of the interval, tends to become clogged in the latter without penetrating to its bottom, and when. in fluid form tends to freeze, or harden, and become set in the interval he fore it penetrates to the bottom thereof, so that it fails to fill the interval and unite with the bottom layer or matrix. thus leaving the sections partially supported on their sides without union betv-reen the aterial in the inter als and the matr'x. This had been found in practice to result in a loosening): of the sections in wear, or under the action of the weather, thus materially decreasing the lite of the pavement. The present in- X'G'fltiOll overcomes this dilliculty in that the interval is progressively winer Irom top to bottom providingincreasing space "for the illing material. The latter is therefore not impeded in its [low but penetrates in substantial quantity to the bottom of the interval and into union with the bottom layer 6.

. In order to insure uniform and proper spacing of the sections when laid, they are preferably provided on their sides adjacent the ends thereof with spacing elements or lugs 12, and on their ends with similar elements 13 in right and left hand arrangement, these lugs 12 and 13 falling into proper relative spacing in the pavement for or indentations 1 into which the material flows and which satisfactorily secure the end desired, without, however, interfering with the penetration of the cementing material to the bottom of the interval. Y I

The sections are simple in construction and economical to manufacture, and the pavement may be economically laid. The form of the sections insures the proper relative setting of the latter and the eltet-tive disposition of the materials so that the sections are fully supported at their sides and bottom and all the parts firmly united in a solid and rigid construction which prevents the sections from becoming loosened in use and affords an exceedingly durable pavement.

I claim as my invention:

1. A pavement comprising a plurality of juxtaposed sections smaller at their bottoms than at their tops to provide downwai .ly in reasing intervals therebetween and facilitate the penetration of cementing material adjacent the bottoms of said interi ls, :ementing material in-said intervals for securing them togetl'ier, and anchoring portions on the sections providing horizontal shoulders interlocking with the cementing materials to prevent upward or downward movement of the sections.

2. A pavement comprising a plurality of juxtaposed sections formed to provide downwardly increasing intervals therebetween formed with anchoring portions between.

and an interposed cementing material for securing the sections together, said sections having portions adapted for lockingengage ment with the cementing material, and having spacing lugs disposed adjacent the top thereof.

3. A pavement comprising a plurality of juxtaposed sections having spacing elements for securing intervals therebetween and formed to increase the width of said intervals from top to bottom of said sections to facilitate the penetration of cementing material adjacent the bottom of said sections, and cementing material in said intervals for securing the sections together, the top edges of the sections being chamfered on all sides thereof and having a uniform and substantial thickness of cementing material therel. A pavement comprising sections having spacing elements for securing intervals therebetween and formed to increase the width of said intervals from the surface of the pavement downwardly to facilitate the pene'ration of cementing material adjacent the bottom of said sections, and cementing material in said intervals for securing the sections together, the latter having portions adapted to interlock with said material for holding them firmly in place. v

5. A pavement comprising a plurality of sections each having spacing lugs disposed adjacent the top thereof, the top edges of the sections above the lugs being beveled, the sides below the lugs being beveled to .pro din e a downwardly decreasing area of cross section, a locking groove on each of the sides and a cementitious materialbetween the sections of downwardly increasing width, said cementitious material extending above the spacing lugs and between the rounded upper edges. 7

G. i pavement comprising blocks substantially of the shape of truncated pyramids with their smaller bases downwardly, providing downwardly increasing intervals t ierebetween to facilitate the penetration of cementing material, and cementing material in said intervals, said blocks being formed with horizontally extending indented portions on the sides thereof for interlocking with said material to prevent them from be coming loosened therefrom.

FREDERICK A. BROTSCH, JR. 

